I'm running with the following options:
I'm not getting a BCC recipient added when SpamAssassin detects spam... I'm running an earlier CVS version with SA2.63, but I'm using the -b option instead of -B, so I'm not sure where the problem lies.
I did find that there are some subtle differences in the default X-Spam-Status: header that SA3.x uses vs. SA2.6x, and I've changed the default to write the header per 2.6x, but still not getting a BCC. This is my first time integrating SpamAss-Milter with SA3 -- apologies in advance if I'm missing something obvious.